# Overview

[Canto](https://docs.canto.io/) is home to *Free Public Infrastructure* (FPI), which is the belief that core DeFi primitives should be made available as feeless public goods.

Whereas independent DeFi protocols tend towards rent-seeking behavior and compete with one another, Canto's FPI primitives concentrate activity and liquidity, thus cultivating more favorable conditions for users and builders.

## Canto's FPI

Free Public Infrastructure protocols on Canto are controlled by chain governance. At this time, Canto's FPI includes the following:

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Canto DEX</strong></td><td>A feeless Decentralized Exchange (DEX) forked from Solidly.</td><td></td><td><a href="primitives/canto-dex">canto-dex</a></td></tr><tr><td><strong>Canto Lending Market</strong></td><td>An open Lending Market based on Compound V2.</td><td></td><td><a href="primitives/canto-lending-market">canto-lending-market</a></td></tr><tr><td><strong>NOTE</strong></td><td>An overcollateralized unit of account with an algorithmic interest rate policy.</td><td></td><td><a href="primitives/note">note</a></td></tr><tr><td><strong>Ambient Finance</strong></td><td>A novel, single-contract DEX with support for concentrated and other liquidity curves, adapted for Canto.</td><td></td><td><a href="primitives/ambient-finance">ambient-finance</a></td></tr><tr><td><strong>Neofinance Coordinator</strong></td><td>A ve-locking incentivization protocol for Canto's downstream lending markets.</td><td></td><td><a href="primitives/neofinance-coordinator">neofinance-coordinator</a></td></tr><tr><td><strong>Contract Secured Revenue</strong></td><td></td><td>A fee sharing mechanism for smart contract developers at the protocol layer.</td><td><a href="primitives/contract-secured-revenue">contract-secured-revenue</a></td></tr></tbody></table>


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